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Small fix to USB printing which should fix the issues for printrbots

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This commit is contained in:
Jaime van Kessel 2015-09-18 15:24:21 +02:00
parent d7923b8100
commit 9380dacbed
1 changed files with 4 additions and 3 deletions
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7
plugins/USBPrinting/PrinterConnection.py
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@ -264,16 +264,17 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
# If the programmer connected, we know its an atmega based version. Not all that usefull, but it does give some debugging information.
for baud_rate in self._getBaudrateList(): # Cycle all baud rates (auto detect)
Logger.log("d","Attempting to connect to printer with serial %s on baud rate %s", self._serial_port, baud_rate)
if self._serial is None:
try:
self._serial = serial.Serial(str(self._serial_port), baud_rate, timeout = 3, writeTimeout = 10000)
except serial.SerialException:
Logger.log("i", "Could not open port %s" % self._serial_port)
return
#Logger.log("i", "Could not open port %s" % self._serial_port)
continue
else:
if not self.setBaudRate(baud_rate):
continue # Could not set the baud rate, go to the next
Logger.log("d","Attempting to connect to printer with serial %s on baud rate %s", self._serial_port, baud_rate)
time.sleep(1.5) # Ensure that we are not talking to the bootloader. 1.5 sec seems to be the magic number
sucesfull_responses = 0
timeout_time = time.time() + 5